Observation information
- date-obs: 2021-01-18
- time-obs: 04:24:55.293200000
- date-end: 2021-01-18
- time-end: 06:25:25.026500000
- obs_id: A10_021T08_9000004118
- exposure: 3711.77552037
- sourceid: NGC 4689
- observer: rosolowsky
- ra_pnt: 191.8
- dec_pnt: 13.90036
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_021T08_9000004118_28702cztM0_level2.evt
| modeM0/AS1A10_021T08_9000004118_28702cztM0_level2_quad_clean.evt
|
| Size (bytes) | 441,118,080 | 91,465,920 |
| Size | 420.7 MB
| 87.2 MB
|
| Events in quadrant A | 3,102,485 | 595,522 |
| Events in quadrant B | 3,165,198 | 608,772 |
| Events in quadrant C | 3,140,192 | 580,578 |
| Events in quadrant D | 3,544,472 | 566,646 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12641 | 1 |
| B | 0 | 12807 | 1 |
| C | 0 | 12797 | 1 |
| D | 0 | 14369 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5990 | 60 | 1.001669% |
| B | 5990 | 65 | 1.085142% |
| C | 5990 | 99 | 1.652755% |
| D | 5991 | 51 | 0.851277% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7230 | 5990 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7230 | 5990 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7230 | 5990 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7231 | 5991 | 11 | 11 | 0.15% | 0.18% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 13 | 254 | 11393 | 65.59 | 801 | 786 | 161.7 |
| A | 14 | 239 | 7244 | 39.93 | 801 | 786 | 161.7 |
| A | 3 | 137 | 7166 | 39.45 | 801 | 786 | 161.7 |
| B | 10 | 247 | 53323 | 349.03 | 791 | 772 | 150.6 |
| B | 12 | 111 | 17680 | 112.3 | 791 | 772 | 150.6 |
| B | 11 | 111 | 16251 | 102.81 | 791 | 772 | 150.6 |
| C | 14 | 238 | 134593 | 750.15 | 766 | 773 | 178.4 |
| C | 14 | 254 | 15070 | 80.14 | 766 | 773 | 178.4 |
| C | 3 | 233 | 8389 | 42.69 | 766 | 773 | 178.4 |
| D | 8 | 195 | 291326 | 1579.61 | 774 | 754 | 184.0 |
| D | 12 | 79 | 111930 | 604.38 | 774 | 754 | 184.0 |
| D | 1 | 52 | 105441 | 569.1 | 774 | 754 | 184.0 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |